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  6. Introduction to initiatives for the environment

Introduction to initiatives for the environment

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POM1400N type, FPN1100NB type, etc.

last updated:Sep 08, 2025

Nippon Daiya Valve Co., Ltd.
Nippon Daiya Valve Co., Ltd.
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Aiming to create environmentally friendly valves... "The entire company is united in promoting the continuous reduction of environmental impact!" "ISO 14001 certification obtained!"

Japan Diavalve Co., Ltd. aims to be a sustainable company that balances environmental activities and economic activities amid the worsening global environmental issues. Recognizing the commitment to environmental conservation as one of the important pillars of its business activities, the company obtained ISO 14001 certification in 2008 and is working together as a whole company on environmental activities. *For more details, please refer to the PDF materials or feel free to contact us. (The English and Chinese versions of the catalog can be downloaded from the catalog page of the special website below.)

    valve
環境に

Introduction to initiatives for the environment

環境に やさしい バルブづくりを目指して・・・・.jpg
環境に やさしい バルブづくりを目指して・・・・.jpg ECOダイヤフラムバルブ.gif
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NDV [Introduction to Environmental Initiatives]

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NDV "Product Information" Catalog

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NDV "Ball Valve" Comprehensive Catalog

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NDV "Butterfly Valve" General Catalog

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Japan Diavalve Co., Ltd. Company Profile

Japan Diavalve Co., Ltd. Company Profile

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News about this product(43)

New Year's greetings

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I would like to extend my respectful New Year's greetings. I sincerely thank you for your exceptional support during the past year. I kindly ask for your continued patronage this year as well. We have resumed normal operations since January 5th. We will respond to inquiries received during the holiday period in due course. Thank you for your patience and understanding.

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Introduction to Our Efforts for the Environment

Notice of Year-End and New Year Holidays

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Thank you very much for your continued support. We sincerely apologize for the inconvenience, but our company will be closed for the year-end and New Year holidays during the following period. Closure Period: December 28, 2024 (Saturday) to January 5, 2025 (Sunday) Inquiries made through this website or via email will be addressed sequentially starting from January 6 (Monday) after the closure period. We apologize for any inconvenience this may cause and appreciate your understanding.

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VIETWATER 2024

Notice of participation in "VIETWATER 2025" from Wednesday, October 22, 2025, to Friday, October 24, 2025. {Case studies are also being introduced!!}

  • Seminar・Event

Nihon Diaball Valve Co., Ltd. will be exhibiting at "VIETWATER 2025," which will be held in Ho Chi Minh City, Vietnam, from October 22 (Wednesday) to October 24 (Friday), 2025. This exhibition is the largest water treatment-related exhibition in Vietnam, and we will showcase various valves suitable for water treatment equipment, including our representative "diaphragm valves." [Exhibition Content] ■ Diaphragm Valves - We will present various lining products with excellent corrosion and chemical resistance. - We will introduce valves optimal for individual processes such as purification equipment, sludge treatment equipment, and pure water systems. ■ Ball Valves - In addition to standard two-way valve types, we offer a series of ball valves suitable for a wide range of fields. - We will showcase various valve seats that can be used under special conditions, such as with abrasive fluids. We sincerely look forward to your visit.

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Notice of Shipping Suspension Period Due to Interim Financial Statement Inventory Count

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Thank you very much for your continued support. We would like to inform you that our company will suspend product shipping operations for inventory purposes due to the interim financial closing on the following dates. We apologize for any inconvenience this may cause and appreciate your understanding. Shipping suspension period: Tuesday, September 30, 2025.

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Companynews list (102)

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Nippon

Nippon Daiya Valve Co., Ltd.

Machine elements and parts

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Since its founding in 1955, our company has made customer satisfaction (CS) — that is, "providing products that satisfy our customers" — the fundamental management policy. For over 60 years, we have supplied products such as diaphragm valves, ball valves, and butterfly valves tailored to our customers' needs. By providing these products across a wide range of industrial sectors, including pharmaceuticals, chemicals, semiconductors, and steel manufacturing, as well as in public sectors such as nuclear and thermal power generation, water supply and sewage, and waste treatment facilities, we take pride in contributing to the development of economic activities and the creation and maintenance of an environmentally sustainable society. Moving forward, we will continue to respond to our customers' requests and strive to be of service to society, with all employees making every effort. 【Main Areas of Service】 We provide a wide range of valves across various sectors, from industries such as pharmaceuticals, chemicals, semiconductors, and steel manufacturing to public sectors like nuclear and thermal power generation, water supply and sewage, and waste treatment facilities. ■ ISO 9001 and 14001 Certification Obtained *For more details, please download our company brochure or contact us.

Product/Service List (51)

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